Book
Maths Puzzle
Trigonometry
Using the pythagorean theorem, find the missing side
c = 9, b = 3a; find b and a
Read Solution (Total 1)
a^2+(3a)^2=9^2
a^2+9a^2=81
10 a^2=81
a=+-9/sqrt(10)
10 years ago
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im working with the pythagorean theorem
how do you solve for c, if a=12 and b=15. So far ive got to 12 squared+ 15 squared=c squared